Home / 126,626.10-189,785.55-56,430.90

Finding the Fourth Proportional to 126,626.10, 189,785.55 and 56,430.90

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Solution

The fourth proportional to 126,626.10, 189,785.55 and 56,430.90 is: 84,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,626.10 : 189,785.55 = 56,430.90 : x
  2. Step 2: Convert to fraction form
    126,626.10/189,785.55 = 56,430.90/x
  3. Step 3: Cross multiply
    126,626.10x = 189,785.55 × 56,430.90
  4. Step 4: Simplify right side
    126,626.10x = 10,709,769,393.50
  5. Step 5: Solve for x
    x = 10,709,769,393.50/126,626.10
  6. Step 6: Final answer
    x = 84,577.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.